| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 1894 | 22 |
| 2015 | 1992 | 23 |
| 2014 | 2339 | 22 |
| 2013 | 2283 | 24 |
| 2012 | 2275 | 24 |
| 2011 | 2281 | 23 |
| 2010 | 1986 | 22 |
| 2009 | 1572 | 21 |
| 2008 | 1994 | 20 |
| 2007 | 1760 | 19 |
| 2006 | 1607 | 18 |
| 2005 | 1416 | 18 |
| 2004 | 1265 | 17 |
| 2003 | 1047 | 18 |
| 2002 | 941 | 17 |
| 2001 | 880 | 17 |
| 2000 | 982 | 17 |
| 1999 | 845 | 17 |
| 1998 | 733 | 19 |
| 1997 | 787 | 18 |
| 1996 | 783 | 19 |
| 1995 | 739 | 19 |
| 1994 | 588 | 19 |
| 1993 | 471 | 18 |
| 1992 | 408 | 22 |
| 1991 | 343 | 22 |
| 1990 | 295 | 24 |
| 1989 | 251 | 24 |
| 1988 | 211 | 26 |
| 1987 | 179 | 26 |
| 1986 | 138 | 28 |